I have used both and the Super DH is my go to for enduros at the moment.
The Giro is warmer, a bit heavier but probably easier to fit/remove the shinguard with the helmet on.
Bell is lighter, cooler, more use for me as a ‘regular’ helmet without the chin bar and as I say it’s my ‘go to’ but I do find it is harder to attache and remove the chin bar on it with the helmet on.